Finding the Fourth Proportional to 10,167,861.98, 14,031,652.30 and 5,521,645.79
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Solution
The fourth proportional to 10,167,861.98, 14,031,652.30 and 5,521,645.79 is: 7,619,872.69
Step by Step Solution
- Step 1: Write the proportion equation
10,167,861.98 : 14,031,652.30 = 5,521,645.79 : x - Step 2: Convert to fraction form
10,167,861.98/14,031,652.30 = 5,521,645.79/x - Step 3: Cross multiply
10,167,861.98x = 14,031,652.30 × 5,521,645.79 - Step 4: Simplify right side
10,167,861.98x = 77,477,813,817,695.14 - Step 5: Solve for x
x = 77,477,813,817,695.14/10,167,861.98 - Step 6: Final answer
x = 7,619,872.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.